Telephone base unit



FIG. 1 is front, top and right side perspective view of a telephoneinstrument base showing our new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof, the side opposite beingsubstantially a mirror image; and

FIG. 4 is a bottom plan view thereof.

The ornamental design for a telephone base unit, as shown and described.